Rolling metal door



1963 M. B. ZOLL mm. 3,076,499

ROLLING METAL DOOR Filed Sept. 10, 1958 4 Sheets-Sheet 1 FIG. I

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INVENIORS MAURICE B. ZOLL ELMER J. DUNCAN Y ATTORNEY Feb. 5, 1963 M. B.ZOLL ETAL 3,

ROLLING METAL nooa Filed Sept. 10, 1958 4 Sheets-Sheet 2 INVENTORSMAURICE B. ZOLL ELMER J. DUNC AN ATTOR NEY Feb. 5, 1963 M B. ZOLL ETALROLLING METAL DOOR 4 Sheets-Sheet 3 Filed Sept. 10, 1958 INVENTORSMAURICE B. ZOLL ELMER J. DUNCAN 'FIG. 7

ATTORNEY Feb. 5, 1963 M. B. ZOLL ETAL ROLLING METAL DOOR 4 Sheets-Sheet4 Filed Sept. 10, 1958 s u i I i \I llc FIG. 9

F l G. IO

' INVENTORS MAURICE B. ZOLL ELMER J. DUNCAN ATTORNEY Unite States3,076,499 ROLLING METAL DOOR Maurice B. Zoll, Lynnwood, Lynnhaven, andElmer J. Duncan, Norfolk, Va., assignors to The J. G. WilsonCorporation, Norfolk, Va., a corporation of Delaware Filed Sept. 10,1958, Ser. No. 760,160 17 Claims. (Ci. 160-41) or without safetymechanism to prevent them from beinglifted from the outside byunauthorized persons. The advantages of our new rolling metal doors orclosures lie not only in the general construction of such but also inthe means sealing the lateral edges thereof against the passage offluid, particularly water.

An object of our invention is to provide a rolling metal door consistingof interengaging slats, with means supporting the door for up-and-downmovement with respect to a frame, means being employed for guiding eachlateral edge of the door, including a flange extending along each ofsaid edges, members secured to the end portions of said slats andcooperating with said guiding means, said members comprising portionssecured to said slats and with lugs outstanding therefrom and lying onone side of the flange of the adjacent guiding means, other lugsoutstanding therefrom and lying on the other side of said flange, themeans supporting said door being such that at least some of the securedportions of said members lie in sealing engagement with the free edge ofthe cooperating flange, and the flanges guide the door in itsup-and-down movement with said lugs preventing undesired displacement ofthe door.

Another object of our invention is the provision of flexible means forsealing the joints between adjacent slats of a door, even when the dooris flexed as when rolled up on a supporting device.

A further object of our invention is the provision of avrolling metaldoor consisting of slats hinged with re spect to one another, andguiding means at the ends of said slats including parts which performthe additional function of end locks for preventing longitudinaldisplacement of said slats with respect to one another.

A still further object of our invention is the use of flexible sealingstrips as additional, instead of the main means of preventing leakingthrough a rolling metal door.

These and other objects and advantages will become apparent from thefollowing detailed description when taken with the accompanyingdrawings. It will be understood that the drawings are for purposes ofillustration and do not define the scope or limits of the invention,reference being bad for the latter purpose to the appended claims.

horizontal section on thcline 11-11 or" FIGURE 1, in

the direction of the arrows.

atentO 3,076,499 Patented Feb. 5, 1963.

FIGURE 3 is a fragmentary inside elevational view of the door of FIGURE1, or in a direction from the left of said figure.

FIGURE 4 is a fragmentary end elevational view in the direction of thearrows on the line IVIV of FIG- URE 3.

FIGURE 5 is a fragmentary vertical sectional view of a modification, onthe line VV of FIGURE 7, in the direction of the arrows;

FIGURE 6 is a fragmentary horizontal sectional view on the line VI-VI ofFIGURE 7, in the direction of the arrows.

FIGURE 7 is a fragmentary interior elevational view, or one from theleft of FIGURE 5.

FIGURE 8 is a fragmentary plan of another modification but otherwisecorresponding with FIGURE 2, with parts shown in horizontal section, butillustrating the other side edge portion of a door embodying our invention and its modified guiding and sealing means.

FIGURE 9 is a fragmentary vertical sectional view showing a furtherembodiment of our rolling metal door, the slats thereof being shown incoplanar or normal positions.

FIGURE 10 is a view corresponding to FIGURE 9, but showing the slats inangled positions, as when the door is rolled up or raised.

Referring to the drawings in detail, and first'con-sidering theembodiment of our invention illustrated in FIG- URES 1 to 4, inclusive,there is shown a rolling metal door, generally designated 11, which maybe connected to, operated by, and rolled up on a reel, not shown, butwhich may be conventional as illustrated, for example, in the GreegorPatent, No. 1,989,513, or in the Zoll ing a raising or rolling-upoperation.

copending application, Serial No. 623,398, filed November 20, 1956, nowPatent No. 2,898,988, dated August 11, 1959 and owned by the assignee ofthe present application.

The door 11 consists of a plurality of metal slats 12, each of which hasedge portions rolled or turned to generally cylindrical form, asindicated at 13 and 14, to receive in or be received by thecorrespondingly rolled rolled edge of an adjacent slat. In the presentembodiment, these rolled edges are formed respectively on flanges 15 and16, extending from the inner surfaces of Webs 17. Although we do notwish to be limited to the material forming the slats, which may be ofany durable metal, in the present embodiment a preferred material isstainless steel.

By virute of the interengaging rolled or generally cylindrical edgeportions of the slats, the same may be hinged with respect to oneanother and relatively angled dur- The slats are hingedly assembled withrespect to one another by inserting one end of each of the smallerrolled edges, such as those designated 14, in the opposite end of thelarger rolled edge such as that designated 13 of the adjacent slat, andsliding said slats longitudinally with respect to one another until theylie with their corresponding ends disposed in the same vertical lines asviewed most clearly in FIGURE 3.

Each door 11 may be terminated at its lower end by a special slat 20,the upper edge of which is rolled, as indicated at 19, at the end of aflange 21, the remainder of the slat being a flat web or dependingportion 22 secured to the upstanding flange 23 at an angle iron 24. Theother or lower flange 25 of said angle iron is adapted to lie flat onthe ground or pavement 26 outside of a door opening 27. The latter maybe defined by a sill 28 in the form of an angle iron, and vertical sidemembers 29 only one of which is illustrated. Alternatively, the flange25 of said .angle iron 24 may carry flexible sealing means for engage-:rnent with the ground 26 such, for example as the dust:

proof member 32 disclosed in the Cookson et al. Patent No. 2,820,516.Each lateral edge of the door 11 is slidable in a guide generallydesignated 31.

In the present embodiment, each guide 31 consists of a fixed metal angleiron 32 secured to a vertical door frame side member 29 and with aflange 33 projecting therefrom. Pairs of angle irons 34 and 35 haveflanges 3-6 and 37, respectively, engaging opposite faces of the flanges33 and are secured thereto in any desired manner as by means of rivets,not shown. The other flanges 38 and 39 of said angle irons 34 and 35,respectively, are spaced from one another as shown most clearly inFIGURE 2 to receive a lateral edge portion of the door 11. Each of theflanges 38 has secured thereto in any desired manner a fourth metalangle iron 41 which has a flange 42 which has a generally straight freeedge and projects therefrom toward a flange 39 to form a seal as well asthe guides for the corresponding lateral edges of the door 11.

In order to provide means at lateral edge of the door 11 to cooperatewith a flange 42 and prevent undesired displacement of the door in theplane of its slats, we secure at each end of each slat a guide member 43comprising a generally flat web or other portion 44 directly secured tothe inner face of the web 17 of its slat, as by means of rivets 45,desirably formed of aluminum or aluminum alloy. Extending from each web44 in the same direction as the flanges 15 and 16 is a lug 46 adjacentthe outer side edge of each member 43 and a lug 47 disposed laterallyinward, and vertically, in this case upwardly, offset or displacedtherefrom so as to overlap the member 43 thereabove and thecorresponding hinged connection between a pair of slats, thereby lyingalong the ends of the slats and providing an end lock to prevent lateraldisplacement of the slats with respect to one another.

In the present embodiment, although each of the members 43 is desirablyformed as an aluminum or aluminum alloy casting and the edges areclosely bevelled, as indicated at 48 and 49, so as to overlap thecorrespondingly bevelled edges of adjacent members to thereby furtherinhibit the leakage of fluid between slats, we do not wish to be limitedto the material used or the manner of shaping it. When a door is inplace, the lugs 46 and 47 lie on the opposite sides of the correspondingflange 42 and desirably have their flange-adjacent faces 51 formedconvex or cylindrical to prevent biting into the adjacent sides of saidflange 42 upon vertical reciprocation of the door.

From the foregoing it will be seen that if water or other fluid attemptsto go through the door opening 27 to the inside of the door 11, it hasto pass from the outside between the flanges 39 of the angle irons 35and the side edges of the door 11 around the guide member webs 44 andtheir lugs 46, where it is effectively stopped by the flat metal tometal engagement between said webs 44- and the edges of the flanges 42of the angle irons 41 which thereby form an effective seal, as viewedmost clearly in FIGURE 2. Also, any water reaching the spaces 53 inwhich the luge 46 are disposed, will drain downwardly to the bottom ofthe door, thereby discharging on the surface 26 which, as viewed inFIGURE 1 is below the floor or surface 54 inside of the door 11. Anywater, of course, passing under the bottom angle iron 24 will notusually get to the floor 54 because it will be stopped by the dependingflange 55 of the angle iron 28. Thus the members 43 perform the doublefunction of preventing undesired lateral displacement, or such in theplane of the door 11, and providing a durable metal to metal sealagainst the passage of fluid around the side edges of the door.

Referring now to the embodiment of our invention illustrated in FIGURES5, 6 and 7, there is shown a door 11a similar to that of the firstembodiment except that the slats and some of the associated parts areformed somewhat differently. Specifically, the door 11a consists of aplurality of metal slats 12a which may be formed from aluminum or analloy thereof by an extrusion process rather than by rolling. One edgeof each slat, in

this case upper, may be formed hollow and slightly more thansemi-cylindrical, as indicated in 13a, and the other, in this case thelower edge portion 14a, instead of being hollow, as in the previousembodiment, may be solid and somewhat more than semi-cylindrical and ofcorresponding size to be hingedly received in the turned edge portion13a of the adjacent slat. As in the preceding embodiment, these edgeportions are formed on the edge portions of flanges 15a and 16a,respectively, extending from the inner surfaces of webs 17a. Each web17a, in the present embodiment, is desirably reinforced by alongitudinally extending bead or boss 50, desirably triangular incrosssection, thereby presenting a pleasing appearance. Each boss 50thus presents sloping sides serving to guide the adjacent associatedmembers 62 and 63, to be later discussed in detail, to seatingengagement on the web 17a.

By virtue of the interengaging generally cylindrical edge portions ofthe slats, the same are hinged with respect to one another and may berelatively angled during a raising or rolling-up operation. The slatsare assembled with respect to one another by inserting one end of thesolid bead 14a in the opposite end of the hollow cylindrical edgeportion 13a of the adjacent slat and sliding said slats longitudinallywith respect to one another until they lie with their corresponding endsdisposed on the same vertical lines, as viewed most clearly in FIGURE 7.

The door 11a may be terminated at its lower end by a special slat formedgenerally like that designated 20 of the preceding embodiment, exceptthat it may be extruded rather than rolled. It may have secured to itsflat depending portion the upstanding flange of an angle iron as in theprecedingembodiment. Each lateral edge of the door 11a is slidable in aguide generally designated 31a.

In the present embodiment, each guide 31a consists of an angle iron 32asecured to a door frame member 29a by suitable means such as bolts, notshown, and with a flange 33a projecting therefrom. A special structuralmember 56 is connected to each of the flanges 33a by suitable means suchas rivets, not shown. Each structural member 56 is generally U-shaped insection and consists of a base 57 from which extend flanges 58 and 59.Flanges 60 and 61 extend beyond the flanges 58 and 59, respectively, toprovide portions through which the attaching rivets, if used, mayextend. Each of the flanges 58 has projecting therefrom toward thecorresponding flange 59, an interior flange 42a to form the guides forthe corresponding lateral edges of the door 11a.

In order to provide means at each lateral edge of the door 11a tocooperate with a flange 42a and prevent lateral displacement of the doorin the plane of its slats, We secure at each end of each slat a pair of,rather than a single guide member, said guide members being heredesignated 62 and 63. In the present embodiment, the guide memberscomprise base portions 64 and 65 respectively disposed between the slatboss 50 and the flange 15a thereof and said boss and the flange 16athereof and respectively secured to said web as by means of rivets 66and 67. At the outer ends of said base portions 64 and 65 arerespectively provided lugs 68 and 69'.

The guide members 62 and 63 are so formed and connected to the slatsthat one of them, in this case the member 62, has its lug 68 laterallyolfset with respect to the lug 69 on the member 63 so that said lugs maylie on opposite sides of the flanges 42a, as viewed most clearly inFIGURE 6, one of said lugs, in this case that designated 69, being ofsuch width that it overlaps the bead 14a of its slat, thereby providingan end lock to prevent lateral displacement of the slats with respect toone another.

Although in the present embodiment each of the members 62 and 63 isformed desirably of material such as stainless steel and the rivets, 66and 67, are desirably formed of aluminum or an alloy thereof, we do notwish to be limited in the material used, The lugs 68 and 69 desirablyhave their faces which are adjacent to flanges 42a formed convex orcylindrical to prevent biting into the adjacent sides of said flangesupon vertical reciproca tion of the door.

In order to further weatherproof the joints between the door edges andthe special structural members 56, we may find it desirable to form theflanges 59 of said members with inwardly opening pockets 71 forreceiving the heads 72 of flexible. T-shaped members 73, the stems orprojecting portions 74 of which resiliently engage near the side edgesthe adjacent face of the door 11a, as viewed mostclearly in FIGURE 6. Itwill be understood, however, that such a resilient sealing member need.not be employed and if desired it may be employed in any one or all theother embodiments. It may be formed of flexible rubber or rubber-likematerial such as neoprene.

. From the foregoing, it will be. seen that if water or, other fluidattempts to go through the door opening 27a to the inside of the door11a, it has to pass between the flanges 59 of the special structuralmembers 56 and the side edges of the door 11a along the base portions 64and around the lugs 68 where it is effectively stopped by the engagementbetween the base portion 64 of the guide members 62 and the edges of theflanges 42a which form an effective seal as viewed most clearly inFIGURE 6. However, such a seal is not quite as effective as in thepreceding embodiment, because the base portions 64 do not form asubstantially continuous vertical surface like webs 44 of the castingmembers 43 of the preceding em bodiment. However, this seal is, in thepresent embodiment, supplemented by the flexible member 73 so that thesealing is sufficiently effective for the purpose. Any water reachingthe spaces 53a in which the lugs 68 are disposed will drain downwardlyto the bottom of the door, thereby discharging on the surfacecorresponding with that designated 2 6 in FIGURE 1, just below the flooror surface designated 54 inside of the door.

Referring now to the embodiment of. our invention illustrated in FIGURE8, there is shown a door 11b which may be constructed like the door 11of the flrst embodiment or like the door 11a of the second embodiment.In the present embodiment, guides 31b at the door edges each consists ofan angle iron 32b secured to a door frame member 29b, with a flange 33bprojecting therefrom. As will be observed in the present embodimenhthedoor frame member 2% opposite the door frame member,29 or 29a of thefirst and second embodiments, respectively, is illustrated. r

A pair of angle irons 34b and 3512, which have flanges overlapping oneanother, are secured to the inner surface of each flange 33b in anydesired manner, as by means of rivets, not shown. The other flanges 38band 39b of said angle irons 34b and 3511 are spaced, as illustrated, toreceive the lateral edge portions of the door 1112. Each of the flanges38b has secured thereto, in any desired rhahnerya fourth angle iron 41bwhich has a flange 42b projecting therefrom toward a flange 39b, to formthe guides for the corresponding lateral edges of the door 111;. Thecooperation between the flanges 42b and the door 111) may be identicalwith that between the flanges 42 of the first embodiment and the door 11or that between the flanges 42a of the second embodiment and the door11a.

As a further means of inhibiting the passage of fluid around the dooredges, we provide angle irons 75, each secured to a door frame member29b by suitable means, not shown, or with a flange 76 projectingtherefrom. We also provide angle irons 77, one flange of each'of whichmay be dis-posed in engagement with the corresponding flange 39b of anangle iron 3512, without connection thereto, Alternatively, theseengaging flanges may be connected in any desiredmanner. If connected tothe flanges 3%, then the angle irons 75 need not be secured to the doorframe members 2%. Each angle iron 77 has a flange 78 projectingtherefrom and between which and a flange 76 is sandwiched a flexibleweather proofing member 79, the free edges of which members extend toand resiliently engage the adjacent face of the door 11b. The means forholding the weather strip members 79 between the flanges 76 and 78 maycomprise a series of screws or other fastening means 81. It will beunderstood that similar flexible weather proofing may be used as asubstitute for the flexible members 73 of the second embodiment.

Referringnow to the embodiment of our invention illustr-ated in FIGURES9 and 10, there is shown a fragmentary portion of a door 110 whichconsists of a plurality of metal slats 12c,.each of which has edgeportions formed generally cylindrical as indicated at 13c and 140, toreceive in or be received by the correspondingly formed edge of anadjacent slat. In the present embodiment these edge portions are formedon flanges 15c and 160, respectively, extending from the inner surfacesof Webs 17c. Although we do not Wish to be limited to the materialforming the slats, which may be of any durable metal, in the present.embodiment the metal is. desirably aluminum or an aluminum alloy.

By virtue of. the interengaging generally cylindrical edge portions ofthe slats, the same are hinged with respect to one another and may berelatively angled during a raising or rolling-up operation. The slatsare assembled with respect to one another by inserting one end of thesmaller cylindrical edge portion, such as that designated 140, in theopposite end of the larger cylindrical edge portion, such as thatdesignated 130, of the adjacent slat and sliding said slatslongitudinally with respect to one another until they lie with theircorresponding ends disposed on the same vertical lines, as viewed mostclearly in FIGURE 3 or FIGURE 7. The door 110 may be terminated at itslower end as described in connection with the first embodiment and eachlateral edge of the door is or may be provided with guide members, suchas those designated 43, or those designated 62 and 63, slidable in aguide, asdescribed in one of the preceding embodiments, therebypreventing the passage of fluid, particularly water, past the lateraledges of the door. r r

In the present embodiment, special provision is made for also preventingpassage of water between the slats around the hinged connections. Thissealing of the joints between the slats is effected by the provision ofpockets 82 and 83 in each slat 120, or in each web 17c thereof, eachpocket extending longitudinally from end to end of its slat and beingdesirably generally cylindrical except where it opens to the outer faceor weather side of its slat. Received in said pockets are weather sealsformed of flexible rubber .or rubber-like material such as neoprene,each-0f which may consist of enlarged side edge portions 85 and 86snugly fitting and insertible longitudinally of the adjacent pockets 83and 82, respectively, ofthe slats, like the slats are assembled withrespect to one another, and thereby locked in place in said pockets.These enlarged side edge portions are connected by resilient flexibleportions 87 spanning the distance therebetween to seal the jointsbetween adjacent slats, even when the latter are rotated with respect toone another, as to the position illustrated in FIGURE 10, as during theprocess of being elevated or rolled up. It is understood that, ifdesired, the joints between the slats of any one or all of the precedingembodiments may be similarly sealed.

- Having now described the invention in detail in accordance with therequirements of the patent statutes, those skilled in this art will haveno difliculty in making cIiangeS and modification'sin the individualparts or their relative assembly in order to meet specific requirementsor conditions. Such changes and modifications may be made withoutdeparting from the scope and spirit of the invention, as setforth in thefollowing claims.

a We claim:

. 1. A rolling metal door, composed of interengagin-g slats, meanssupporting said door for u-p-and-down movement with respect to a doorframe, a fixed metal guide for each lateral edge of said door includinga flange extending along said edge and having a generally straight freeedge, metal members secured to the end portions of said slats andcooperating with said guides, said members comprising generally flatportions secured to the slats, lugs outstanding therefrom and lyingalong the ends of the slats on one side of the flange of the adjacentguide and, other lugs laterally displaced beyond the ends of the slatsand also outstanding from said flat portions and lying on the other sideof said flange, the means supporting said door being such that at leastsome of the secured portions of said members lie in flat metal to metalsealing engagement with the straight free edge of the cooperating flangeand the flanges guide the door in its upanddown movement, with the lugsperforming the additional function of preventing undesired displacementof the door in the plane of said slats.

2. The. combination recited in claim 1, wherein each guide comprises anangle iron secured to the door frame and with a flange projectingtherefrom, a pair of angle irons, numbers two and three, with flangesengaging opposite surfaces of said first-mentioned flange and securedthereto and the other flanges of said pair of angle irons being spacedto receive a lateral edge portion of said door, and the flange extendingalong said edge portion being formed by a flange projecting inwardlyfrom a fourth angle iron secured to the inner surface of the outerflange of said pair of angle irons.

3. The combination recited in claim 1, wherein the flange-engaging sidesof the lugs are convex to avoid binding.

4. The combination recited in claim 1, wherein one of each of thefirst-mentioned lugs forms an end lock to prevent lateral displacementof the slats with respect to one another.

5. The combination recited in claim 1, wherein flexible weather sealsextend from said guides and engage the outer surface of said door.

6. The combination recited in claim 1, wherein each guide comprises anangle iron secured to the door frame and with a flange projectingtherefrom, a pair of angle irons, numbers two and three, with flangesoverlapped and secured to said first-mentioned flange, other flanges ofsaid pair of angle irons extending laterally away from said overlappedflanges and defining a groove for receiving a lateral edge of said door,a fourth angle iron with a flange projecting from the door frame, afifth angle iron with a flange overlying said last-mentioned flange, anda flexible weather seal secured between said last-mentioned flanges andengaging the outer surface of said door.

7. The combination recited in claim 1, wherein each guide comprises anangle iron secured to the door frame and with a flange projectingtherefrom, a U-shaped member with its base secured to said projectingflange and opening toward a cooperating U-shaped member to form guidesfor the lateral edges of said door, the element forming the side of saidU-shaped member more remote from the door frame having an inwardlyprojecting flange forming the guide for a lateral edge of the door.

8. The combination recited in claim 7, wherein the other element forminga side of each of said U-shaped members has secured thereto the head ofa T-shaped flexible element, the stem of each of said flexible elementsprojecting inwardly therefrom to engage the outer surface of said door.

9. The combination recited in claim 1, wherein each slat is formed witha web and flanges projecting from one side thereof for hingingconnection with adjacent slats, said web having pockets opening in itsface away from said flanges, and weather seals each with a pair ofenlarged side edge portions locked in said pockets and each pair of sideedge portions being connected by flexible portions spanning the distancetherebetween to seal the joints be- 8 tween adjacent slats, even whenrotated with respect to one another.

10. The combination recited in claim 1, wherein each of the memberssecured to said slats is a casting with a web engaging a slat and a pairof lugs outstanding there from, one of said pair lying at the outer sideedge of its casting and disposed between the upper and lower edgesthereof, and the other of said pair projecting beyond a horizontal edgeof said casting to function as an end lock.

11. The combination recited in claim 1, wherein each slat has a webportion rigidified by a longitudinally extending boss and terminates atits lateral edges in flanges for hinged connection with adjacent slats,and the members secured to the end portions of the slats comprise onewith a portion secured to an end portion of the slat between said bossand a flange and another secured to the same end portion of said slatbetween said boss and the other flange.

12. A rolling metal door composed of interengaging slats, meanssupporting saiddoor for up-and-down movement with respect to a doorframe, a guide for each lateral edge of said door including a flangeextending along said edge, members secured one to each end portion ofeach slat and each having a web secured to the end portion of a slat anda lug outstanding therefrom and lying on one side of the flange of theadjacent guide and another lug outstanding therefrom and lying on theother side of said flange, the means supporting said door being suchthat the webs of said members lie in sealing engagement with the freeedge of the cooperating flange and the flanges guide the door in itsup-and-down movement with the lugs preventing undesired displacement ofthe door in the plane of said slats.

13. The combination recited in claim 12, wherein the slats are formed ofstainless steel and the members secured to the end portion of a slateach comprises an aluminum casting.

14. The combination recited in claim 12, wherein each guide comprises anangle iron secured to the door frame, second and third angle irons withflanges lying on opposite, sides of the outstanding flange of saidfirst-mentioned angle iron and secured thereto, the other flanges ofsaid second and third angle irons being spaced to receive the lateraledge of said door, and a fourth angle iron with one flange secured tothe inner face ofthe outermost flange of the second and third angleirons and with its other flange extending into the space between saidspaced flanges and forming the guide for a lateral edge of said door tobe engaged by the webs of said means secured to the end portions of saidslats for sealing purposes. p

15. The combination recited in claim 1, wherein each slat is formed witha web and flanges projecting from one side thereof for hingingconnection with adjacent slats, said web having pockets opening in itsface away from said flanges, and weather sealsv each with a pair ofenlarged side edge portions locked in said pockets and each pair of sideedge portions being connected by flexible portions spanning the distancetherebetween to seal the joints between adjacent slats, even whenrotated with respect to one another.

16. The combination recited in claim 1, wherein each guide comprises anangle iron secured to the door frame and with a flange projectingtherefrom, means secured to said flange and providing flanges spaced toreceive a lateral edge portion of said door, and the flange extendingalong said edge portion being formed by a flange projecting inwardlyfrom another angle iron secured to the inner surface of the outer flangeof said means. I

17. A metal door composed of interengaging slats, means supporting saiddoor for movement to cover or expose an opening, a guide for eachlateral edge of said door including a flange extending along said edgeand having a generally straight free edge, members secured to the endportions of said slats and cooperating with said guides, said memberscomprising generally flat portions secured to the slats, lugsoutstanding therefrom and lying along the ends of the slats on one sideof the flange of the adjacent guide and other lugs laterally displacedbeyond the ends of the slats and also outstanding from said flatportions and lying on the other side of said flange, the meanssupporting said door being such that at least some of the securedportions of said members lie in fiat metal-to-metal sealing engagementwith the straight free edge of the cooperating flange, and the flangesguide the door in its movement, with the lugs performing the additionalfunction of preventing undesired displacement of the door in the planeof said slats.

References Cited in the file of this patent UNITED STATES PATENTSGervais Oct. 10, 1905 McCloud Apr. 16, 1907 Raper Apr. 6, 1926 DellerJune 14, 1927 Miller July 18, 1933 Greegor Jan. 29, 1935 Pilcher May 10,1938 Slaughter July 25, 1944 Skelly Jan. 11, 1949

1. A ROLLING METAL DOOR, COMPOSED OF INTERENGAGING SLATS, MEANSSUPPORTING SAID DOOR FOR UP-AND-DOWN MOVEMENT WITH RESPECT TO A DOORFRAME, A FIXED METAL GUIDE FOR EACH LATERAL EDGE OF SAID DOOR INCLUDINGA FLANGE EXTENDING ALONG SAID EDGE AND HAVING A GENERALLY STRAIGHT FREEEDGE, METAL MEMBERS SECURED TO THE END PORTIONS OF SAID SLATS ANDCOOPERATING WITH SAID GUIDES, SAID MEMBERS COMPRISING GENERALLY FLATPORTIONS SECURED TO THE SLATS, LUGS OUTSTANDING THEREFROM AND LYINGALONG THE ENDS OF THE SLATS ON ONE SIDE OF THE FLANGE OF THE ADJACENTGUIDE AND OTHER LUGS LATERALLY DISPLACED BEYOND THE ENDS OF THE SLATSAND ALSO OUTSTANDING FROM SAID FLAT PORTIONS AND LYING ON THE OTHER SIDEOF SAID FLANGE, THE MEANS SUPPORTING SAID DOOR BEING SUCH THAT AT LEASTSOME OF THE SECURED PORTIONS OF SAID MEMBERS LIE IN FLAT METAL TO METALSEALING ENGAGEMENT WITH THE STRAIGHT FREE EDGE OF THE COOPERATING FLANGEAND THE FLANGES GUIDE THE DOOR IN ITS UP-ANDDOWN MOVEMENT, WITH THE LUGSPERFORMING THE ADDITIONAL